Lubricating composition



UNITED STATES PATENT OFFICE.

WILLIAM H. WOOD, OF RICHMOND, CALIFORNIA.

LUBRICATING- COMPOSITION.

No Drawing.

T0 alt w 7mm it may concern Be it known that I, WILLIAM H. 7001), a citizen of the United States, and a resident of the city of Richmond, county of Contra Costa, State of California, have made a new and useful inventionto wit, Improvements in Lubricating Compositions; and I do hereby declare the following to be a full, clear, concise, and exact description of the same.

This invention relates more particularly to a lubricating compound composed of mineral or vegetable oils or greases for use on bearings, frictional contacting surfaces and the like. The principal object of the invention is to produce a compound that will have a refrigerating or cooling effect where excessive frictional heat is to be reduced.

In this specification, the invention is illustrated in the form considered to be the best, but it is to be understood that the invention is not limited to such form, because it may be embodied in other forms; and it is also to be understood that in and by the claim followingthe description, it is desired to cover the invention in whatsoever form it may be embodied.

Where excessive pressures are applied or through accident or inadvertence, insufficient lubricant is supplied, frictional heat generated in engine or shaft bearings will produce what is locally known as a hotbox. This condition is particularly annoying in railroad practice where a hotbox will often delay a train, interfering with schedules, and in some instances generating suflicient heat to cause conflagration.

In overcoming such disadvantages, I take two separate portions of any suitable lubri; eating oil, solidified oil or grease, and into one portion I add nitrate of ammonia, about one part of nitrate of ammonia to nine parts of lubricant. In the other portion of the same oil I add about the same proportion of one part of carbonate of sodium to nine parts of grease. So long as these separate portions of grease are not mixed, the nitrate of ammonia and the carbonate of sodium lie inactive in their respective portions. However, when the two portions or any part of the two portions of grease are mixed to gether, the nitrate of ammonia and the carbonate of sodium re-act upon each other and produce a cold or refrigerating effect in the Specification of Letters Patent.

Application filed August 4, 1920.

Patented Nov. 29, 1921.

Serial No. 401,213.

grease resulting in the rapid reduction of excessive heat in any bearing that the grease may be used as a lubricant. The nitrate of ammonia and carbonate of sodium in no way reduce the lubricating quality of the grease. Graphite, mica and other like sub. stances may be mixed with the grease so long as their nature is not chemically reactive with the nitrate of ammonia or carbonate of sodium to reduce their refriger ating value when they are brought into combination.

While this invention was intended primarily for the purpose and object above set forth, it is also applicable in combination with suitable vegetable and fatty compounds, of stearin, palmatin or olein derivation intended for toilet purposes, such as cocoa oils, olive oil and the various fatty compounds such as are known to the trade as cold cream, massage cream and the like. Such substances may be treated in the manner described in connection with the lubricating grease. A portion of the grease being treated with nitrate of ammonia and a separate portion treated with carbonate of sodium in the proper proportion so that when any quantities of the two separate portions are mixed together, the nitrate of ammonia and the carbonate of sodium will re-act to produce a cooling effect upon the skin when the unguent is applied thereto. Such creams or salves have a soothing effect upon the skin and are useful in treating sunburn or any feverish condition of the human system. Such treatment may be applied also where icepack and other chilly treatments are necessary.

Having thus described this invention, what I claim and desire to secure by Letters Patent is A lubricating composition consisting of 18 parts of a grease or oil base and substantially one part each of carbonate of sodium and nitrate of ammonia separately occluded therein.

In testimony whereof, I have hereunto set my hand at Richmond, California, this 11th day of June, 1920.

WILLIAM H. WOOD.

In presence of- BALDWIN VALE, LINCOLN V. JOHNSON. 

